Resilient packing



' May 24, 1932. M. BIRKIGT REsILIENT lPACKING Filed DeC. 19, 1928 2 Sheets-Sheet 1 .Ewen/for: l jY/ro 19a/'77s@ fidi?.

May 24, 1932. M. BIRKIGT A 1,860,274

RESILIENT PACKING Filed Dec. 19, 1928 2 Sheets-Sheet 2 QMS@ Patented May A24, 1932' ur'rsA STATES-l PATENT o FIcfVf;

MA'nc Bramer,` 0F BoIs COLOMBES, FRANCE f RESILIENT PACKING Application filed December 19, 1928,-Sera1 No.`327,152, and in "Belgiuml liovexnber 9, V1928.1.4

The present invention relates to resilient packings and, more particularly, for those of the type adapted to be inserted between metals having different coefficients of expan Fig. 1 is a section through an internal coin-- l5 bustion engine showing the packing in place Fig. 2 to 15 are a series of sections of divers forms of packings which may be employed.

The invention, while capable of generalapplication to any form of joint,is more es- 29 pecially designed for use in certain internal Y combustion engine assemblies wherein the cylinderbloclr is formed of an external light metal casting fitted with steel cylinder shells.

An assembly of this type is represented in` Fig. 1 and comprises steel cylinder shells a having their upper extremities in threaded engagement with light metal casting a forming thecylinder head and water-jacket. Elements a and b are formed with parallel,

plane, annular surfaces adapted Vto receive apacking c which, according tothepresent invention, is formedof a turned steel element having a coefcient -of elasticity close tothe load necessary to produce rupture. Y l

`As will be seen from Figs. 2 to 15, rings c may be given a diversity of sections, but preferably, should include a pair of plane external, bearing surfaces separated by angu! lar portions formin a bellows-like structure.

or combinations thereof. Y

The rings represented in Figs. 9 to 15 have tions of both.

`Whatever be the form of fsectionemployed; L

kof contact with, the Walls of'said recess.

specification.-

0 In the packings li ustrated in Figs. 2 to 8, the ring-section presents an Nfor an M'form curved or rectilinear U sections or-combinainserted so as to facilitate the flow of` heat between the light metal and the steel cylinder. It will lbe noted that ringsY constructed in *i accordance with the above, besides Offering resistance to compression, are capable of V,

`adapting their form toirregularities or in,- v

accuracies in the form of the surfaces upon which they react. i l

WhatI claim `is 1*- l l y 1. In a structure including apair of threadedly interengaging shells, said shells having a recess formed therebetween, a resilient ferrous metal packing element having a pair of end surfaces bearingV against opposite wallsA `of saidl recess and tending to force said walls 35 V l apart, said packing element having a laterall l-wall forming-anangle with respect to eachV f of said end surfaces, and a lateral surface partially Vcontacting with,`and partially out 2. In acylinder block assembly including aV cylinder block having'la threaded portion, p y

formed thereon 'anda 4cylinder threadedly engaging withv the threadedportion of said i cylinder block, said cylinder block and cylinder limiting a recesstherebetween, a resil'- ient ferrous metal packing element having a pair of end surfaces Vbearing against opposite walls of said recess and tending to force said walls( apart, said packingfelement vhavs0 ing a lateral wall forming an angle with respect toeach yof said'v end surfaces.k

In testimony wh Manic BIRKIGT.

the ring should'be formed with a surface d adapted to contact Aclosely with the,` lateral portions (internal or external see Figs. V5V; and 15) of the recess into which the ring is.

ereof I have signed this` i 'A i 

